What is familial mediterranean fever like?

Fevers & belly pain: Fmf is a genetically inherited disease which leads to fevers and, often, abdominal pain that can be mistaken for an infection but is not. Symptoms usually start in young adult hood and treatment involves the use of anti-inflammatories.

Subtle: Brief episodes of fever, generally beginning in childhood, with discomfort in different parts of the body (one side of the chest, the abdomen, a joint, maybe elsewhere) each time. Worse, especially if untreated, the disease often eventually causes amyloidosis, which will first ruin your life, then end it. Genetic testing clinches the diagnosis. Good luck.